Journal of Power System Engineering (동력기계공학회지)

The Korean Society for Power System Engineering (한국동력기계공학회)
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Numerical Analysis on the Pressure Characteristics in a Snubber for Hydrogen Compressor

수소압축기용 스너버 내부 압력특성에 관한 수치해석

  • 심규진 (경상대학교 대학원) ;
  • 이중섭 (경상대학교 BK21 친환경냉열에너지기계연구사업팀) ;
  • 악바르 완다 알리 (경상대학교 대학원) ;
  • 정한식 (경상대학교 기계항공공학부.해양산업연구소) ;
  • 정효민 (경상대학교 기계항공공학부.해양산업연구소) ;
  • 이철재 (동명대학교 자동차공학과)
  • Published : 2007.02.28
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Abstract

The objective of this study is to find the optimum design of a snubber using CFD analysis. Several dimensions such as snubber height(H), snubber diameter(D), buffer width and buffer angle are considered in this study. The present study shows that the CFD can be applied to study the pressure characteristics inside the snubber. The objective of the snubber design optimization are to minimize a pressure loss and the pulsation ratio. Numerical results such as particle track, pressure distribution and turbulent kinetic energy are used to analyze the critical area and pressure behavior inside the snubber. As a result, snubber model with H/D ratio of 3.23 and buffer angle of $40^{\circ}$ has a minimum pressure loss. On the other hand, snubber model with H/D ratio 4.41 and buffer angle $10^{\circ}$ has a minimum pulsation ratio.

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